Transform annual data into monthly cumulative data

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Priscila
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Transform annual data into monthly cumulative data

Postby Priscila » Thu Jun 22, 2017 6:01 pm

I have an input variable (Demand) that is given every 15 minutes for 12 months and I need to gather this data of 15 minutes in 1 hour to get the consumption, I need between annual data and that are presented monthly, the objective is to get the Value of the monthly energy bill that is the result of the sum of consumption multiplied by the consumption rate and demand multiplied by the demand rate, how can I do that?

Administrator
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Re: Transform annual data into monthly cumulative data

Postby Administrator » Thu Jun 22, 2017 6:36 pm

I don't really follow what you are asking, but it sounds like a job for Excel.
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Priscila
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Re: Transform annual data into monthly cumulative data

Postby Priscila » Mon Jun 26, 2017 12:05 pm

At first, the demand is an initial variable, after it is reduced as a function of a generator of energy that is inserted in the system, where the feedback is present generating a new variable of demand and another of consumption, for that reason I have to do this in Vensim . I need to know the function that does and displays the average for every 4 data and also if it is possible to make an accumulator that in a certain period is zeroed and starts counting again.

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Re: Transform annual data into monthly cumulative data

Postby Administrator » Mon Jun 26, 2017 12:10 pm

Priscila wrote:At first, the demand is an initial variable, after it is reduced as a function of a generator of energy that is inserted in the system, where the feedback is present generating a new variable of demand and another of consumption, for that reason I have to do this in Vensim .

ok. This was not clear in your initial question.

Priscila wrote:I need to know the function that does and displays the average for every 4 data

Does this help?
http://www.vensim.com/documentation/ind ... _trend.htm

Priscila wrote:and also if it is possible to make an accumulator that in a certain period is zeroed and starts counting again.

Use a level and empty it using level/time step when you want it zeroed.
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Priscila
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Re: Transform annual data into monthly cumulative data

Postby Priscila » Mon Jun 26, 2017 1:39 pm

Use a level and empty it using the level / time step when you want it to be zeroed.
Could you give me an example?

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Re: Transform annual data into monthly cumulative data

Postby Administrator » Mon Jun 26, 2017 1:41 pm

Code: Select all

some level = integ (inflow - outflow - reset level, initial stock)

reset level = if then else ( time = 10 , some level / time step , 0 )


This will reset the level at time = 10.
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Priscila
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Re: Transform annual data into monthly cumulative data

Postby Priscila » Mon Jun 26, 2017 2:25 pm

That way I can show the values ​​at each time interval, every 10, but I can not reset the accumulator. I need, for example, to add from 0 to 10, to zero the count add from 11 to 22 and so on and show on the same variable.

Priscila
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Re: Transform annual data into monthly cumulative data

Postby Priscila » Mon Jun 26, 2017 6:16 pm

Does the vensim software contain no more than 8000 data in tabular form?

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Re: Transform annual data into monthly cumulative data

Postby Administrator » Tue Jun 27, 2017 7:52 am

Priscila wrote:That way I can show the values ​​at each time interval, every 10, but I can not reset the accumulator. I need, for example, to add from 0 to 10, to zero the count add from 11 to 22 and so on and show on the same variable.

I think this would be much easier if you upload the model you are working on so we can see. I'm really struggling to understand what you are trying to do.
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Re: Transform annual data into monthly cumulative data

Postby Administrator » Tue Jun 27, 2017 7:52 am

Priscila wrote:Does the vensim software contain no more than 8000 data in tabular form?

Correct.
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Priscila
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Re: Transform annual data into monthly cumulative data

Postby Priscila » Tue Jun 27, 2017 12:22 pm

The variable invoice is the sum of demand (given every 15 minutes) times the tariff of demand + consumption (which is the sum of demand every 1 hour) times the consumption tariff ...
The consumption variable should be the average of the four demand values, so that the data every 15 minutes are transformed into hourly data. After these hourly data must be added every month, that is, they need to be accumulated from time 0 to time 2975, from time 2976 to time 5759 and so on until total sum of monthly consumptions.
Lastly, the invoice variable must be calculated monthly, that is, it accumulates until the time 2975, it zeroes and it begins to accumulate of the time 2976 until 5759, zera and begins to accumulate in 5760 until 8735 and so on.
There are a total of 14 months of simulation.
Also, after the simulation I need to transfer the data to excel, this is possible given that it is a total of 40800 data.
Attachments
etanol hard_anual1.mdl
(22.53 KiB) Downloaded 6 times

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Re: Transform annual data into monthly cumulative data

Postby Administrator » Wed Jun 28, 2017 7:50 am

I cannot find a parameter called "invoice" in your model.

I think it might be better if you first try and follow some best practice on your model. It doesn't pass the most basic of tests (dimensional consistency), it's impossible for me to work out what the model is supposed to do or if any of the calculations are correct (what is demand even measured in?).
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Priscila
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Re: Transform annual data into monthly cumulative data

Postby Priscila » Mon Jul 03, 2017 5:55 pm

I have a series of 9 data:
2
3
1
2
4
5
6
7
5
It is necessary to obtain in the vensim, the maximum value comparing every 3 intervals as follows:
0
0
3
0
0
5
0
0
7
How can I perform this operation
Also, how do I export the values obtained in a simulation with more than 8000 times

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Re: Transform annual data into monthly cumulative data

Postby Administrator » Tue Jul 04, 2017 3:40 pm

Priscila wrote:I have a series of 9 data:
2
3
1
2
4
5
6
7
5
It is necessary to obtain in the vensim, the maximum value comparing every 3 intervals as follows:
0
0
3
0
0
5
0
0
7
How can I perform this operation

Where is the logic in this? Why are there zeros if you are calculating the maximum over 3 intervals?

Also, how do I export the values obtained in a simulation with more than 8000 times

Vensim documentation, search for export.
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